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BMW Battery Replacement – How to Do it Yourself If your BMW keyfob doesn't respond to the lock or unlock buttons, or has stopped working entirely it could be time to get a new battery. It's simple to replace the battery on your own. The battery can be replaced by removing the access port from the valet key. Then, you must make sure that the new battery is registered. How to Replace the Battery A car battery is the most vital component of any car, and it will need to be replaced at least once during the course of a driver's career. However, replacing the BMW battery doesn't have to be the most difficult DIY project, and you can even save money by performing the task yourself. Knowing how much work is required to replace batteries is essential to success with your DIY project. The first step is to determine which type of battery your BMW uses. There are three types of batteries each with its own pros and con. One of the most well-known is a lead-acid battery that is made up of sulfuric acid and lead. It generates electricity by an chemical reaction and recharges itself when you use your BMW. Other battery types in BMWs include Gel or Absorbent Glass Mat. These batteries are similar in operation but require different handling and installation. It's time to replace your old battery when you know which one your BMW makes use of. The majority of auto parts stores have systems in place to match your BMW's make and model with the appropriate battery, which can save you time. You could also look at your owner's manual, which will likely list the battery type required for your specific model. To replace the battery in a BMW key fob, switch off your car and then remove the metal blade of the valet key, or a flat screwdriver to access the lock cylinder. Then, take off the fob's liner, and locate the battery. After you have removed the battery clean the terminal connections, and then reinstall them using careful. Don't tighten the brackets too much, as this could cause cracks in the battery case. Connect the positive first before connecting the negative. Finally, connect the upholstery to its normal position. Registering the battery you have purchased is an excellent thing to do. If you do this, the engine control module (known as the DME) will know that a new battery has been installed and won't be confused as to which one to charge. It will also reset the statistics on battery age, which could help stop overcharging of your brand new BMW battery in Smyrna or Alpharetta. How do you replace a CR2032 battery A dead key fob is an inconvenience, but it's also quite simple to replace the battery. It only takes just a few minutes and can be done at home. BMW key fobs use CR2032 watches batteries. These batteries are more expensive than other ones however they can be found at any convenience store or auto parts center. You can replace the battery by taking off the old one and replacing it with a new one. Then put the fob back in. It's a quick process, and you'll be able restart your vehicle in the blink of an eye. A dead battery could be the cause of your BMW key fob not working while you're driving around Johns Creek. Fortunately, it's easy to fix! Press the small tab located on the left side of the BMW key fob to open the valet key. You'll notice a small port near the battery once the key fob has been opened. You can make use of a flat screwdriver or similar tool to remove the cover of the battery, and then you can replace it with a fresh one. If you're looking to buy a new BMW or a used car in the vicinity of Decatur, then be sure to look through our inventory at Tulley BMW Nashua. If you have any concerns about our vehicles, contact us today. We look forward to helping to find the perfect car for you! How to replace a CR2450 battery The BMW key fob is a convenient device that provides security and convenience at the touch of a button. Over time, however the battery in your BMW key fob will weaken, and it will need to be replaced in order for it to continue working effectively. Knowing how to replace the BMW key fob battery can help you get back on the road swiftly and quickly. There are a variety of BMW keyfobs. However they all have the same kind of battery that is a coin cell CR2450 battery. The small round battery is sold in a majority of stores for less than $1 per unit. In addition to being easily accessible, CR2450 batteries are also extremely easy to install and remove from the key fob. To replace the CR2450 battery in your BMW, first locate the tab on the key fob that releases the metal valet key within the fob. Once the metal valet has been removed, look for the small access port that hides the key battery on the front of your fob. Using a flat screwdriver, take off the cover to expose the battery. Once the old battery is removed, replace it with a new one with the positive side facing up and then rebuild the key fob. Test the key fob after the battery is replaced to confirm that it's still functioning properly. If the key fob does not respond, contact your BMW dealer for further troubleshooting assistance. Some older BMW models require that the key fob be synchronized with the vehicle after replacing the battery. However, this is not the case with BMWs produced in recent years. g28carkeys.co.uk is possible to replace the battery in an old BMW key fob, by opening the case and putting a new one in. However, this method should not be used as it may damage the internal circuitry. Instead Tulley BMW of Nashua recommends following the steps in this article to change the CR2450 battery for most BMW key fobs. This simple task can be completed in a matter of minutes and can help you get back on the road quicker. How to Replace a CR2032 Side Indent Battery It is simple to replace the CR2032 side-indent batteries found in BMW series 1 keyfobs (and other models). This battery is shaped like a nickel, and it can be removed and put back into the slot very easily. Replace the battery that was used with the new one using your fingers. Make sure you match up the polarity. You can find replacement batteries in a variety of auto parts stores as well as online. The process is a bit different depending on whether your BMW has a “diamond key fob”. The CR2016 battery in this key is not the same as either a CR2032 or a CR2025, and you can't open the case to replace it. However you can try shifting the CR2016 cell using conductor foil to see whether it works. If you can't get it to work, you will need to cut off the fob part of the plastic to expose the battery and then solder into an alternative one. The tiny access port found on many BMW key fobs is accessible with the edge of a different key's metal blade or a flat-headed screwdriver. If you don't have a metal blade you can make use of the edge of pen. Once you remove the cover and then open the cover, the CR2032 batteries will be evident. The CR2032 side-indent batteries were not intended to be serviced, and the case can't be opened. The battery is rechargeable and is charged when you insert the ignition key. It's a good idea have a spare key available in case your remote gets damaged or lost. If you need help programming your BMW remote or replacing a dead battery, contact us at Tulley BMW of Nashua. We have a dedicated team of experts available to address your questions or concerns. We are looking forward to getting in touch with you!